...top terminated in a point or vertex. 8. A sphere is a solid, bounded by one continued convex surface, every point of which is equally distant from a point within, called the centre. The sphere may be conceived to be formed by the revolution of a semicircle about its diameter,...

...become x=r cos. «, y=r sin. v. SECTION IT. ON THE CIRCLE. (32.) A CIRCLE is a plane figure bounded by a line, every point of which is equally distant from a point within called the center. This bounding line is called the circumference of the circle. A radius of a circle is a straight line...

...NONAGOJ* ; that of t«i, a DECAGON ; that of twelve, a DODECAGON, &-i•.. A CIRCLE is a plane, terminated by a curved line, every point of which is equally distant from a point within, culled the center. The curved line is called the circumference The DIAMETER of a circle is a line passing...

...parameter. A Sphere, or globe, is a perfectly round substance — a solid contained under a curved surface, every point of which is equally distant from a point within, called the centre. Its axis, or diameter, is any right line passing from a side through the centre to the...

...the additional fact, that two straight lines cannot include a space. A circle is a portion of a plane bounded by a curved line, every point of which is equally distant from a point within, called the centre. 1 The curve is called the circumference, or in common language, the circle. So that in...

...Descriptive Geometry, Shade» and Shadows, Perspective, Spherical Projections, and Isometrical Projcca curved line, every point of which is equally distant from a point within, called the centre. The curve is called the circumference, or in common language, the circle. So that in speaking...

...centre, (Latin) out of the centre. 19. A SPHERE. 'A sphere is a solid, bounded by a curved surface, every point of which is equally distant from a point within, called the centre; every line passing through this centre, and limited by the surface, is a diameter. The...

...NONAOON ; that of ten, a DECAGON ; that of twelve, a DODECAGON, &c. A CIRCLE is a plane, terminated by a curved line, every point of which is equally distant from a point within, called the centre. The curved line is called the circumference. The DIAMETER of a circle is a line passing...

...chains, and the perpendicular distance between them 52 chains ? 337. A circle is a portion of a plane bounded by a curved line, every point of which is equally distant from a certain point within, called the centre. The curved line AEBD is called the circumference ; the point...

...conceptions in the above instance united in the conception of the cause; the flight through the air in a curved line, every point of which is equally distant from a certain imaginary fixed point and an imaginary straight line, are the representations united in the...